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Finding the Fourth Proportional to 22,417.69, 30,936.65 and 12,346.33

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Solution

The fourth proportional to 22,417.69, 30,936.65 and 12,346.33 is: 17,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,417.69 : 30,936.65 = 12,346.33 : x
  2. Step 2: Convert to fraction form
    22,417.69/30,936.65 = 12,346.33/x
  3. Step 3: Cross multiply
    22,417.69x = 30,936.65 × 12,346.33
  4. Step 4: Simplify right side
    22,417.69x = 381,954,028.26
  5. Step 5: Solve for x
    x = 381,954,028.26/22,417.69
  6. Step 6: Final answer
    x = 17,038.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.